Relay



(No Model.)

H. S. L. VERLEY.

. RELAY.

No. 519,142. Patented May 1, 1894.

WITNESSES: INVENTOR:

101mm fihxa'cle'g BY Z A? ATTORNEY.

Jaw A! EMMA-.44-

UNITED STATES PATENT 'OEEIQE.

HORACE S. L. VERLEY, OF HOBOKEN, NEW JERSEY.

RVELAY.

SPECIFICATION forming part of Letters Patent No. 519,142, dated May 1, 1

Application filed January 13,1894. Eerial No. 496,787. (No model.)

To all whom it may concern:

Be it known that I, HORACE S. L. VEELEY, a subject of the Queen of Great Britain, and a resident of Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Relays, of which the following is aspecitication.

My invention has reference to improvements in relays and especially to improvements in the relay described in United States Letters Patent No. 502,449, granted to me August 2, 1893.

It has for its object to render instruments of the construction set forth in said patent more reliable with respect to retaining the clrcuit of the local battery closed, and at the same time to increase the sensitiveness of the instrument in general.

To this end my invention consists essentially in combining with the relay an auxiliary electro magnet placed in the circuit with the primary magnet and adapted to act on the said contact arm simultaneously with the primary magnet.

The nature of my said invention will best be understood when described in connection with the accompanying drawings, in which- Figure 1 is a sectional side elevation of a relay constructed according to my invention. Fig. 2 is a diagram illustrating the electrical connections.

Similar letters and figures of reference indicate corresponding parts throughout both Views of the drawings.

Referring at present to Fig. 1 of the drawings, the letter A designates a powerful permanent magnet substantially circular in shape and having its ends or poles brought to face each other. The magnet is secured to the base of the relay in any suitable manner. Between the poles of the magnet is located a coil B, which is free to vibrate on knife edges a 12 secured respectively to said coil and to a stationary armature D, located within the coil and supported by a post D. The armature may be made either of soft iron, or it may be a permanent magnet. To the coil B is secured a light contact arm 0 normally held against an insulated stop it by a spring g attached to the coil B and to the base.

The instrument so far described corresponds substantially with that described in the Letters Patent above referred to.

I have found in practice that there is a tendency for the coil B to vibrate slightly on its pivots when the current is closed through the same, thereby rendering the closing of the local circuit somewhat uncertain. To obviate this defect I make use of an auxiliary electro-magnet B arranged to act upon a small armature 0 carried by the contact arm 0 of the coil B simultaneously with the action of said coil B. This electro-magnet may be of any usual construction. In this instance I have shown it placed in line with the axis of the coil and provided with a contact 6 arranged below the stop h; against which the contact arm is drawn to close the circuit of the local battery.

Referring to Fig. 2 it will be seen that the coilof electro-magnet B is interpolated in the line circuit 10-11, that is, in the same circuit with coil B and consequently both magnets act conjointly both in closing the c1rcu1t 12,13 of the local battery and in breaking the same.

While I have herein shown my improvement applied to a specific form of relay, Ido not wish to restrict myself to this application, since it may be applied to any other form of relay.

What I claim is- 1. In a relay, the combination of a primary actuating magnet, a pivoted coil disposed between the poles of the same, a contact arm projecting from said coil and participating in the movements thereof, a contact for the same, and an auxiliary electro-magnet in the circuit of the primary magnet arranged near the free end of the contact arm and acting si multaneously with the primary magnet, substantially as and for the purpose set forth.

2. In a relay, the combination with the primary contact actuating magnet, of an auxiliary magnet arranged in the line circuit to act upon said contact arm and provided with a contact e for said arm, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 11th day of J anuary, 1894:.

HORACE S. L. VERLEY. Witnesses:

A. FABER DU FAUE, Jn, KLAs H. TERNS'IEDT. 

